Category Archives: Windows

Windows Explorer Doesn’t Show Thumbnail Previews in Windows Server 2012 R2

Windows Server 2012 R2

Actually its a very common problem in Windows. Sometimes Windows Explorer doesn’t show thumbnail previews for images (Esp png files).

It might be due to a bug or the user accidentally turned off thumbnails using Folder Options or System Properties.

Anyway if you are also facing this problem, you can use following easy fix to show thumbnails again in Windows Explorer:

1. Open Windows Explorer, click on Organize button present in command bar and select “Folder and search options“.

2. Now go to View tab and make sure “Always show icons, never thumbnails” option is not enabled i.e. its disabled.

If the option is enabled, uncheck the checkbox and click on Apply button.

It should fix the problem. If you can’t access Folder Options, you can use following alternative method:

1. Type sysdm.cpl in RUN or Start Menu search box and press Enter. It’ll open System Properties.

2. Go to “Advanced” tab and click on “Settings” button in “Performance” section.

3. Now make sure “Show thumbnails instead of icons” option is enabled.

If its not enabled, enable the option and click on Apply button.

That’s it. Now you should get thumbnail previews in Windows Explorer without any problem.

The local farm is not accessible. Cmdlets with FeatureDependencyId are not registered

PowerShell logo

When you launch the SharePoint 2013 or 2010 Management Shell (in this case SharePoint 2013) :

Run SharePoint 2013 PowerShell Management

The following error occured : “The local farm is not accessible. Cmdlets with FeatureDependencyId are not registered”

CMD for SharePoint 2013 PowerShell Management

So to solve this problem

Launch this cmdlet as administrator and type

Add-SPShellAdmin -UserName Domain\User

In Other Cases you need to run the configuration wizard again.

Installing .NET Framework 3.5 Features on Windows Server 2012 R2

Windows Server 2012 R2

Open “Server Manager” on your “Windows Server 2012 R2”:

Server Manager

Click “Add roles and features” and the following screen will come:

Add Roles and Features Wizard - Before you Begin

Click “Next” and the following screen will come:

Add Roles and Features Wizard - Select installation type

Select “Role Based”, then “Next” and the following screen will come:

Add Roles and Features Wizard - Select Destination server

Select “a server from the server pool”, then “Next” and the following screen will come:

Note: I have skipped the Server Roles as I need to install only Features here.

Installing DOTNET Framework 35 Features 1

Select “.Net Framework 3.5 Features”, then “Next” and the following screen will come:

Installing DOTNET Framework 35 Features 2

As I installed my windows via DVD so I will click the option of “Specify an alternate source path

Installing DOTNET Framework 35 Features 3

The following screen will come:

Installing DOTNET Framework 35 Features 3b

Note: here we have to specify the “sources\sxs” path from our installation device.

Installing DOTNET Framework 35 Features 4

Now after selecting the path click “Install” following screen will come:

Installing DOTNET Framework 35 Features 5

After some time the following screen will come:

Installing DOTNET Framework 35 Features 6

Finally, the Features for .Net Framework 3.5 are successfully installed.

SharePoint 2013 SP1 support in Windows Server 2012 R2


Before the release of Microsoft SharePoint Server 2013 Service Pack 1 (SP1), Microsoft did not support the installation of SharePoint Server 2013 in a Windows Server 2012 R2-based environment. However, with the release of SharePoint Server 2013 SP1, this configuration is supported in Windows Server 2012 R2. You can now download SharePoint Server 2013 SP1 from the Microsoft Developer Network (MSDN), the Volume Licensing Service Center (VLSC), and the Microsoft Partner Network (MPN).

Note You should avoid creating your own slipstream versions because of a change in the package layout that was introduced with the March 2013 product update.

This Article Applies to
  • Microsoft SharePoint Foundation 2013
  • Windows Server 2012 R2 Datacenter
  • Windows Server 2012 R2 Essentials
  • Windows Server 2012 R2 Foundation
  • Windows Server 2012 R2 Preview
  • Windows Server 2012 R2 Standard


Ref : Support Microsoft

Windows Server 2012 and R2 (Overview)

Overview for Windows Server 2012, codenamed “Windows Server 8”, is the sixth release of Windows Server. It is the server version of Windows 8 and succeeds Windows Server 2008 R2. Two pre-release versions, a developer preview and a beta version, were released during development. The software was generally available to customers starting on September 4, 2012.

Unlike its predecessor, Windows Server 2012 has no support for Itanium-based computers, and has four editions. Various features were added or improved over Windows Server 2008 R2 (with many placing an emphasis on cloud computing), such as an updated version of Hyper-V, an IP address management role, a new version of Windows Task Manager, and ReFS, a new file system. Windows Server 2012 received generally good reviews in spite of having included the same controversial Metro-based user interface seen in Windows 8.

Changes introduced in WINDOWS SERVER 2012 R2

The current version Windows Server 2012 R2 was released on October 18, 2013. It was unveiled on June 3, 2013 at TechEd North America. According to Windows Server 2012 R2 datasheet published on May 31, 2013, there are four editions of this operating system: Foundation, Essentials, Standard and Datacenter. As with Windows Server 2012, the Datacenter and Standard editions are feature identical, varying only based on licensing (particularly licensing of virtual instances). The Essentials edition has the same features as the Datacenter and Standard products, with some restrictions.

Changes from Windows Server 2012
Microsoft has confirmed the following changes introduced by Windows Server 2012 R2:

  • Automated Tiering: Storage Spaces stores most frequently accessed files on fastest physical media
  • Deduplication for VHD: Reduces the storage space for VHD files with largely similar contents by storing the similar contents only once
  • Windows PowerShell v4, which now includes a Desired State Configuration (DSC) feature
  • Integrated Office 365 support (Essentials edition)
  • Return of the Windows Start button
  • UEFI-based virtual machines
  • Upgrades from driver emulators to synthetic hardware drivers to minimize legacy support
  • Faster VM deployment (approximately half the time)
  • Internet Information Services 8.5: Support for logging to Event Tracing for Windows and the ability to log any request/response headers. To improve scalability, if IIS is configured with 100 or more web sites, by default it will not automatically start any of them. Alongside this, a new “Idle Worker Process Page-Out” configuration option has been added to application pools to instruct Windows to page-out the process if it has been idle for the idle time-out period (by default, 20 minutes).
  • Server Message Block: Performance and event logging quality improvements, support for Hyper-V Live Migration over SMB, bandwidth prioritization management, and the ability to remove SMB 1.0 support
  • Windows Deployment Services: Support for managing WDS via PowerShell.
  • Windows Defender is available in a Server Core installation, and is installed and enabled by default.
  • IP Address Management (IPAM): Extended to support role-based access control, allowing for fine-grained control over which users can view or change configurations for DHCP reservations, scopes, IP address blocks, DNS resource records, etc. Additionally, IPAM can integrate with System Center Virtual Machine Manager 2012 R2 to have coordinated IP policy across both physical and virtual environments. The IPAM database can be stored in a SQL Server instance instead of Windows Internal Database.
  • Group Policy has a new “Policy Cache” setting which allows domain-joined machines to store a copy of the group policy settings on the client machine and, depending on the speed of access to the domain controller, use those at startup time instead of waiting for the policy settings to download. This can improve startup times on machines that are disconnected from the company network. New Group Policy settings have been added to cover new features in Windows 8.1 and Internet Explorer 11, such as enabling/disabling SPDY/3 support, configuring start screen layouts, and detecting phone numbers in web pages.
  • TLS support is extended to support RFC 5077, “Transport Layer Security (TLS) Session Resumption without Server-Side State”, which improves performance of long-running TLS-secured connections that need to reconnect due to session expiration.

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Windows Server 2012 has four editions: Foundation, Essentials, Standard and Datacenter.

Specifications Foundation Essentials Standard Datacenter
Distribution OEM only Retail, volume licensing, OEM Retail, volume licensing, OEM Volume licensing and OEM
Licensing model Per server Per server Per CPU pair + CAL Per CPU pair + CAL
Processor chip limit 1 2 64 64
Memory limit 32 GB 64 GB 4 TB 4 TB
User limit 15 25 Unlimited Unlimited
File Services limits 1 standalone DFS root 1 standalone DFS root Unlimited Unlimited
Network Policy and Access Services limits 50 RRAS connections and 10 IAS connections 250 RRAS connections, 50 IAS connections, and 2 IAS Server Groups Unlimited Unlimited
Remote Desktop Services limits 50 Remote Desktop Services connections Gateway only Unlimited Unlimited
Virtualization rights N/A Either in 1 VM or 1 physical server, but not both at once 2 VMs Unlimited
DHCP role Yes Yes Yes Yes
DNS server role Yes Yes Yes Yes
Fax server role Yes Yes Yes Yes
UDDI Services Yes Yes Yes Yes
Print and Document Services Yes Yes Yes Yes
Web Services (Internet Information Services) Yes Yes Yes Yes
Windows Deployment Services Yes Yes Yes Yes
Windows Server Update Services No Yes Yes Yes
Active Directory Lightweight Directory Services Yes Yes Yes Yes
Active Directory Rights Management Services Yes Yes Yes Yes
Application server role Yes Yes Yes Yes
Server Manager Yes Yes Yes Yes
Windows Powershell Yes Yes Yes Yes
Active Directory Domain Services Must be root of forest and domain Must be root of forest and domain Yes Yes
Active Directory Certificate Services Certificate Authorities only Certificate Authorities only Yes Yes
Active Directory Federation Services Yes No Yes Yes
Server Core mode No No Yes Yes
Hyper-V No No Yes Yes

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